<?php

class SurveyQAController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('allow',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$questionSaveSuccess = false;
		$answerChoiceSaveSuccess = false;
		if(isset($_REQUEST['SurveyQA']))
		{
			$modelQuestion=new SurveyQuestions;
			$modelQuestion->attributes=$_REQUEST['SurveyQA']['Question'];
			
			if($modelQuestion->save())
			{
				$questionSaveSuccess = true;
				$questionID = Yii::app()->db->getLastInsertId();
				
				$answerChoices = $_REQUEST['SurveyQA']['AnswerChoices'];
				
				foreach($answerChoices as $answerChoice)
				{
					$modelAnswer = new SurveyAnswerChoices;
					$modelAnswer->question_id = $questionID;
					$modelAnswer->text = $answerChoice['text'];
					$modelAnswer->ui_control_type_id = $answerChoice['ui_control_type_id'];
					
					if($modelAnswer->save())
					{
						$answerChoiceSaveSuccess = true;
					}
					else
					{
						$answerChoiceSaveSuccess = false;
					}
				}
			}
			
		}
		
		if($questionSaveSuccess && $answerChoiceSaveSuccess)
		{
			$response = new ServerResponse(100, "Added question-answer set", $modelQuestion);
		}
		else
		{
			$response = new ServerResponse(-100, "Could not add question-answer set.", null);
		}
		
		$this->renderJSON($response);

	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['SurveyQuestions']))
		{
			$model->attributes=$_POST['SurveyQuestions'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}
	
	public function actionUpdateQuestion()
	{
		$question_id = null;
		$model = null;
		if(isset($_REQUEST['SurveyQA']['Question']['id']) && $_REQUEST['SurveyQA']['Question']['id'] != null)
		{
			$question_id = $_REQUEST['SurveyQA']['Question']['id'];
			$model=$this->loadQuestionModel($question_id);
		}
		
		
		if($model != null)
		{
			// Uncomment the following line if AJAX validation is needed
			$this->performAjaxValidation($model);
			
			$update_success = false;
			
			if(isset($_REQUEST['SurveyQA']['Question']['text']) && $_REQUEST['SurveyQA']['Question']['text'] != null)
			{
				$model->text=$_REQUEST['SurveyQA']['Question']['text'];
				$update_success = $model->save();
			}
			
			if($update_success)
			{
				$response = new ServerResponse(100, "Survey question updated", $model);
			}
			else
			{
				$response = new ServerResponse(-100, "Could not update survey question.", null);
			}
		}
		else
		{
			$response = new ServerResponse(-100, "Survey question not found with id :".$question_id, null);
		}
		$this->renderJSON($response);
	}
	
	public function actionUpdateAnswerChoice()
	{
		$answerChoices = null;
		$answerChoiceSaveSuccess = false;
		if(isset($_REQUEST['SurveyQA']['AnswerChoices']) && $_REQUEST['SurveyQA']['AnswerChoices'] != null)
		{
			$answerChoices = $_REQUEST['SurveyQA']['AnswerChoices'];
			
			foreach($answerChoices as $answerChoice)
			{
				$answer_choice_id = $answerChoice['id'];
				$modelAnswer = $this->loadAnswerChoiceModel($answer_choice_id);
				
				if($modelAnswer != null)
				{
					if(isset($answerChoice['questionID'])) $modelAnswer->question_id = $answerChoice['questionID'];
					if(isset($answerChoice['text'])) $modelAnswer->text = $answerChoice['text'];
					if(isset($answerChoice['ui_control_type_id'])) $modelAnswer->ui_control_type_id = $answerChoice['ui_control_type_id'];
					
					if($modelAnswer->save())
					{
						$answerChoiceSaveSuccess = true;
					}
					else
					{
						$answerChoiceSaveSuccess = false;
						break;
					}
				}
			}
		}
		
		if($answerChoiceSaveSuccess)
		{
			$response = new ServerResponse(100, "Survey answer choice updated", null);
		}
		else
		{
			$response = new ServerResponse(-100, "Could not update answer choice.", null);
		}
		
		$this->renderJSON($response);
	}
	
	public function actionGetQASet()
	{
		$survey_id = null;
		if(isset($_REQUEST['survey_id']) && $_REQUEST['survey_id']!= null)
		{
			$survey_id = $_REQUEST['survey_id'];
			
			$qaSetModels = $this->loadQASet($survey_id);
		
			if($qaSetModels)
			{
				foreach($qaSetModels as $qaSetModel)
				{
					$qaSet = null;
					$qaSet->question = $qaSetModel;
					$qaSet->answerChoices = $qaSetModel->surveyAnswerChoices;
					
					$qaSets[] = $qaSet;
				}
				
				$response = new ServerResponse(100, "OK", $qaSets);
			}
			else
			{
				$response = new ServerResponse(-100, "Could not load QA set.", null);
			}
		}
		else
		{
			$response = new ServerResponse(-100, "A survey ID has to be provided.", null);
		}
	
		$this->renderJSON($response);
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		// $dataProvider=new CActiveDataProvider('SurveyQuestions');
		// $this->render('index',array(
			// 'dataProvider'=>$dataProvider,
		// ));
		
		echo "SurveyQA";
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new SurveyQuestions('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['SurveyQuestions']))
			$model->attributes=$_GET['SurveyQuestions'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return SurveyQuestions the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=SurveyQuestions::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}
	
	public function loadQuestionModel($id)
	{
		$model=SurveyQuestions::model()->findByPk($id);
		return $model;
	}
	
	public function loadAnswerChoiceModel($id)
	{
		$model=SurveyAnswerChoices::model()->findByPk($id);
		return $model;
	}
	
	public function loadQASet($survey_id)
	{	
		$found = SurveyQuestions::model()->with('surveyAnswerChoices')->findAllByAttributes(
						array(),
						$condition  = 'survey_id = :survey_id',
						$params     = array(
											':survey_id' => $survey_id
										)
				);
				
		if($found)
		{
			return $found;
		}
		else
		{
			return null;
		}
	}

	/**
	 * Performs the AJAX validation.
	 * @param SurveyQuestions $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='survey-questions-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
